java - Date to Unix timestamp -

i have string looks "2015-06-07 16:01:33.0". want convert unix timestamp. first use calendar utility convert date object. how can convert date epoch time?

string origintime = "2015-06-07 16:01:33.0"; string year = origintime.split(" ")[0].split("-")[0];             string month = origintime.split(" ")[0].split("-")[1]; string day = origintime.split(" ")[0].split("-")[2];  string hour = origintime.split(" ")[1].split(":")[0]; string mins = origintime.split(" ")[1].split(":")[1]; string secs = origintime.split(" ")[1].split(":")[2].replace(".0","");  calendar cal = calendar.getinstance();     cal.set(calendar.day_of_month, integer.parseint(day)); cal.set(calendar.month, integer.parseint(month)); cal.set(calendar.year, integer.parseint(year)); cal.set(calendar.hour_of_day,integer.parseint(hour)); cal.set(calendar.minute,integer.parseint(mins)); cal.set(calendar.second,integer.parseint(secs)); string strdate = null; simpledateformat sdf = new simpledateformat("yyyy-mm-dd hh:mm:ss");  if (cal != null) {     strdate = sdf.format(cal.gettime()); } system.out.println(strdate); 

i think can search answers @ stackoverflow, instead of posting new question, since make stackoverflow better, did quick search , here are: getting unix timestamp date()

or here code straight forward:

date currentdate = new date(); currentdate.gettime() / 1000; 

recently, people prefer jodatime:

datetime datetime = new datetime(); long unix = datetime.getmillis()/1000;